In previous posts, I've gone on about how Creationism is essentially a "theory" of randomness. One of the themes I've gone on about is that I think "randomness" is a function of predictability, rather than some intrinsic thing. Dice rolls cease to be random if you can control them, or gather data on their inertia and such mid-roll.
The dominant random component in evolution is mutation: If we could calculate molecule collisions and gather all the data about the DNA as it's being replicated (pretty much impossible for our technology, but not impossible in principle), we'd be able to predict more precisely than statistical distributions.
Of course, evolution deals largely with the order-inducing nature of natural selection. It's not dumb luck that some organisms survive while others die. Yes, there are some unpredictable accidents and such, but those aren't a problem for the overall picture. Mutations that help an organism survive will flourish, and detrimental ones will tend to fade out or be eliminated outright. Of course, what's helpful changes with the environment, but it's still got logic behind it that you can use to make predictions.
Creationists, on the other hand, usually hold their stone idol as inherently unpredictable. It's usually invoked as a handy device to avoid making any predictions that could falsify their beliefs. Of course, they describe this unpredictability as the result of an "infinite intelligence" that we can't comprehend. But if it's unpredictable, how do they know there's an intelligence? How can they tell the difference between this unpredictable intelligence and randomness? In the real world, when dealing with humans, we can make predictions about how they'll operate and determine if something's the result of human action. Humans leave tool marks, design objects for various understandable purposes, and so forth. Humans are reasonably predictable. On the other hand, if gods aren't predictable, they might as well be random.